Versions/CS-437751

Update Information
Hello friends!

A few small changes on the preview branch before the weekend. Please give this a try and post any bugs you find, whether they are technical bugs, or any thing that's confusing or unclear! Have a good weekend. :)
 * Change the build number prefix for the new update to "CS"
 * Add a "Default to Cloud" option in game options, and a Save To Cloud setting per colony.
 * Choosing "Sync ALL to cloud/local" will also update the default.
 * Updated art on the migration screen
 * Don't log a warning if a colony is missing its matching .png
 * Force a refresh of the "Resume Game" button after migrating and changing sync settings for a save.
 * Migration screen will now show the first error encountered to help diagnose problems.